Historically, data was backed up to tape. But with data growing at double-digit rates each year and backup windows shrinking dramatically or altogether, enterprises are increasingly incorporating disk-based data protection into their backup strategies. Initially, adopters of disk-based data protection were tech-savvy enterprises with the greatest need and tolerance for new technology. Today, a majority of enterprises are shifting to disk as the first line of protection thanks to less disruptive offerings, such as virtual tape libaries (VTLs) and advanced technologies like snapshots that are now easier to manage.
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